ML20134M673
| ML20134M673 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 02/10/1997 |
| From: | Hill W NORTHERN STATES POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9702200351 | |
| Download: ML20134M673 (5) | |
Text
f, Northem States Power Company Monticello Nuclear Generating Plant 2807 West Hwy 75 Monticello. Minnesota 55362 9637 February 10,1997 Tech Spec Sections J
6.7.A.2 & 6.7.A.6 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Annual Report of Occupational Radiation Exposure and Safety Relief Valve Challences - January 1 throuah December 31.1996
)
In accordance with the Monticello Technical Specifications, the following information is provided:
1)
Annual Report of Occupational Exposure (Required by Technical Specification 6.7.A.2).
This report is provided as Attachment A.
2)
Annual Report of Safety and Relief Valve Failures and Challenges (Required by Technical Specification 6.7.A.6 and NUREG 0737, item II.K.3.3). This report is provided as Attachment B.
This letter contains no new NRC commitments, nor does it modify any prior commitments.
Please contact Sam Shirey at (612) 295-1449 if you require additional information conceming these reports.
/kdm1hh' William J. Hill Plant Manager Monticello Nuclear Generating Plant cc-Director, Office of Nuclear Regulatory Research Ib
'/
Regional Administrator-Ill, NRC NRR Project Manager, NRC Resident inspector, NRC State of Minnesota, Attn: Kris Sanda
?()()0M Attachments: A Annual Report of Occupational Radiation Exposu;s B
Annual Report of Safety and Relief Valve Failures and Challenges 2/1Ml7 SIS JUCENSEPER100CRPTERV RAD 96 9702200351 970210 PDR ADOCK 05000263 PDR
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5 ATTACHMENT A
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MONTICELLO NUCLEAR GENERATING PLANT ANNUAL REPORT OF OCCUPATIONAL RADIATION EXPOSURE 1996 1
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PMETS Number of Personnel and Man-Rem Page 1 02/.0,7/97.
by Work and Job Functions (1996) of 2 15:39 Monticello Nuclear Generating Plant Number of Persons >.100 Rem Total Man-Rem Work and Job Function Station Utility Contract Station Utility Contract ISI l
Operators 0
0 0
0.006 0.000 0.000 Maintenance 1
1 19 0.138 0.221 7.599 Supv & Engr 0
1 22 0.294 0.303 5.700 Health Physics 0
0 0
0.088 0.000 0.244 Instr & Control 0
0 0
0.000 0.000 0.000 Security 0
0 0
0.000 0.000 0.000 Routine Maintenance Operators 6
0 0
1.648 0.000 0.000 Maintenance 38 55 99 20.975 22.253 40.705 Supv & Engr 22 4
11 7.575 1.558 5.497 Health Physics 10 0
9 5.538 0.006 7.130 Instr & Control 8
1 0
3.725 0.222 0.000 Security 0
0 0
0.000 0.000 0.000 Oparations Operators 38 0
0 19.839 0.000 0.000 Maintenance 31 1
40 7.836 1.324 12.704 Supv & Engr 27 1
4 9.727 0.611 1.368 Health Physics 23 0
7 7.706 0.004 2.848 Instr & Control 8
0 0
2.695 0.064 0.000 Security 0
0 0
0.000 0.000 0.271 Refueling Operators 15 0
0 3.570 0.000 0.000 Maintenance 7
8 6
2.119 1.959 1.234 Supv & Engr 3
3 0
1.082 0.583 0.130 Health Physics 2
0 4
0.515 0.000 0.927 Instr & Control 0
0 0
0.024 0.000 0.000 Security 0
0 0
0.000 0.000 0.000 Special Maintenance Operators 0
0 0
0.012 0.000 0.000 Maintenance 3
2 49 1.083 0.551 23.776 Supv & Engr 0
0 0
0.182 0.024 0.276 Health Physics 0
0 0
0.138 0.000 0.111 Instr & Control 0
0 0
0.011 0.000 0.000 Security 0
0 0
0.000 0.000 0.000 ER_41 PME_97037T Database Pmets_ static (last updated 02/07/97 03:35 )
l PMETS Number of Personnel and Man-Rem Page 2 02/0,7/97, by Work and Job Functions (1996) of 2 15:39 Monticello Nuclear Generating Plant i
Number of Persons >.100 Rem Total Man-Rem Work and Job Function Station Utility Contract Station Utility Contract Waste Shipping / Handling Operators 0
0 0
0.028 0.000 0.000 Maintenance 5
0 3
1.803 0.000 1.778 l
Supv & Engr 0
0 0
0.105 0.014 0.013 Health Physics 2
0 0
0.491 0.000 0.017 Instr & Control 0
0 0
0.000 0.000 0.000 Security 0
0 0
0.000 0.000 0.000 Unassigned Exposure 0.005
-0.108
-1.493 Sub Totals Operators 59 0
0 25.103 0.000 0.000 Maintenance 85 67 216 33.954 26.308 87.796 Supv & Engr 52 9
37 18.965 3.093 12.984 Health Physics 37 0
20 14.476 0.010 11.277 Instr & Control 16 1
0 6.455 0.286 0.000 Security 0
0 0
0.000 0.000 0.271 Unassigned 0.005
-0.108
-1.493 Grand Totals 249 77 273 98.958 29.589 110.835
- INDIVIDUALS MAY BE LISTED UNDER MORE THAN ONE WORK AND JOB FUNCTION 1996 was a refueling outage year.
Outage dose was 169.000 person-rem Special Maintenance includes:
1.
Turbine Replacement Project 2.
Refuel floor structural steel re-inforcement project 3.
Installation of chiller unit for the 4kV area l
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l ER_41 PME_97037T Database Pmets_ static (last updated 02/07/97 03:35 )
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ATTACHMENT B j
MONTICELLO NUCLEAR GENERATING PLANT i
ANNUAL REPORT OF MAIN STEAM SAFETY / RELIEF VALVE FAILURES AND CHALLENGES i
1996 i
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Failures 12/08/96 The plant was shutdown and the topworks (pilot and second stage assembly) associated with main steam safety relief valve RV-2-71D was changed out due to excessive pilot or second stage seat leakage.
Challenaes i
05/20/96 Following the 1996 refueling outage, all eight main steam safety relief l
valves (SRVs) were manually opened at reactor pressure of approximately 150 psig in accordance with a surveillance test performed during plant startup.
-l 05/20/96 Following correction of two SRV discharge line pressure sensing instrument problems which were discovered during performance of the above surveillance test, SRVs RV-2-71E and RV-2-71G were manually opened a second time later the same day in accordance with this same surveillance test. These SRVs were opened at a reactor pressure of approximately 150 psig.
12/08/96 SRV RV-2-71D was manually opened at a reactor pressure of approximately 150 psig in accordance with a surveillance test performed during the plant startup that followed changeout of its topworks.
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